RESUMO
This study aimed to determine the prevalence and identify the risk factors associated with upper extremity impairments (UEIs) in breast cancer patients and to investigate the degree to which these impairments and other characteristics influence quality of life (QoL). A total of 201 women over the age of 18 who underwent breast cancer treatment at least 6 months were included in this cross-sectional study. All of the patients were evaluated for the presence of lymphoedema and any UEIs. UEIs divided into five subgroups: pain, restriction of shoulder range of motion (ROM), numbness and heaviness, loss of strength, and sensory deficit. QoL of the patients was evaluated by SF-36. The prevalence of the upper extremity impairments was as follows: pain 31.8%, restriction of shoulder ROM 23.9%, numbness and heaviness 35.3%, loss of strength 8.5%, and sensory deficit 18.4%. Furthermore, lymphoedema was seen in 41.3% of patients. The multivariate model showed that lymphoedema is the only statistically significant risk factor that affects the development of UEIs (P = 0.001). However, it also revealed that lymphoedema (P = 0.001) and increased age negatively affect QoL, whereas prolongation of the follow-up period has a favourable impact (P = 0.016). Therefore, lymphoedema diminishes QoL via an increased number of UEIs.